Julia Dhar is a global authority on behavioral science in leadership and organizational change. A Managing Partner and Director at Boston Consulting Group (BCG) and founder of its Behavioral Science Lab, she advises Fortune 100 companies and governments on how to make better decisions under pressure. Before joining BCG, she competed as one of the world’s top debaters, an experience that shaped her lifelong study of how people reason, disagree, and create better results together. Her TED talks on constructive disagreement have reached millions and influenced how leaders and teams handle conflict and complexity. She has held public sector roles in New Zealand and the United Kingdom, bringing a public purpose lens to private sector transformation. Her work sits at the intersection of behavioral economics, institutional design, and practical leadership, offering all of us a way to navigate uncertainty with discipline and imagination.